Silt Wattle

Silt Wattles are used to control silt-laden runoff, trap sediment, and slow water flow on construction sites, preventing pollution and erosion.

They are a circular shaped silt management and soil stabilisation product available in different thicknesses and lengths, filled with durable woodchip fibre encased in a durable mesh netting.

Silt Wattles act as temporary check dams or barriers that intercept surface water, slowing it down so that sediment can settle out of suspension. They help prevent silt from reaching drains, watercourses, or sensitive areas.

Silt Wattles have multi-purpose functionality; they can be used on land or in water to prevent silt pollution.

We provide self installation guidance on different configuration options depending on the construction site, but generally Silt Wattles are placed at the base of slopes, around stockpiles, along site perimeters, near watercourses, along river banks or in rivers during works. They are also effective across temporary channels or along haul roads to slow runoff and reduce silt movement.

Installation is key for optimal performance. Silt Wattles often need to be staked securely or weighted with sandbags to prevent water from flowing underneath or dislodging them during heavy rainfall. See our Silt Wattle installation guidance for support.

On average, they provide effective performance for over 12 months, depending on site conditions. While the woodchip filter is biodegradable, it will take time for them to degrade.

They can be used on moderate slopes and in low-to medium-flow areas. For steeper gradients or high-volume flows, additional measures such as erosion control mats or flocculant products may be required for optimal performance.

Inspect them regularly, especially after heavy rain. Remove built-up sediment, check for undercutting, and reposition or replace the Silt Wattles if they become damaged or ineffective.

Yes, they work well as part of a broader surface water and sediment control strategy. Combine with our Silt Mats™, Floc Mats®, or other settlement systems for enhanced protection.

We do. We offer a free 30 minute phone or online consultation with our technical team to discuss your project. Our team regularly visit construction sites and river restoration projects across the UK to provide tailored advice and support. Get in touch if you’d like help assessing your site and selecting the right combination of silt control products.

You can contact us for availability, pricing, and delivery options. We’re happy to help you choose the right quantity and setup for your project.

Yes. We regularly support clients with on-site assessments, installation advice, pollution prevention training and compliance planning. Contact us to arrange a visit or speak to one of our technical specialists. We happily provide practical advice and support to ensure the right product is used effectively.

• In-ditch Polishing Point: consists of just Floc Mats, Silt Mats and Silt Wattles for a capturing and separating silt from flowing water. It is designed to ‘polish’ the water rather than our other treatment alternatives better designed for bulk drop out.
• In-ditch Treatment Point: includes the use of Gel Flocculant to bind fine silt particles to treat the water, as well as our mats which capture the suspended material while the surface water flows over them.